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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
#include <QObject>
#include <QTextEdit>
#include <functional>
#include <vector>
namespace FakeVim {
namespace Internal {
enum RangeMode
{
// Reordering first three enum items here will break
// compatibility with clipboard format stored by Vim.
RangeCharMode, // v
RangeLineMode, // V
RangeBlockMode, // Ctrl-v
RangeLineModeExclusive,
RangeBlockAndTailMode // Ctrl-v for D and X
};
struct Range
{
Range() = default;
Range(int b, int e, RangeMode m = RangeCharMode);
bool isValid() const;
int beginPos = -1;
int endPos = -1;
RangeMode rangemode = RangeCharMode;
};
struct ExCommand
{
ExCommand() = default;
bool matches(const QString &min, const QString &full) const;
QString cmd;
bool hasBang = false;
QString args;
Range range;
int count = 1;
};
// message levels sorted by severity
enum MessageLevel
{
MessageMode, // show current mode (format "-- %1 --")
MessageCommand, // show last Ex command or search
MessageInfo, // result of a command
MessageWarning, // warning
MessageError, // error
MessageShowCmd // partial command
};
template<typename>
class Callback;
template<typename R, typename... Params>
class Callback<R(Params...)>
{
public:
static constexpr auto IsVoidReturnType = std::is_same_v<R, void>;
using Function = std::function<R(Params...)>;
void set(const Function &callable) { m_callable = callable; }
R operator()(Params... params)
{
if (!m_callable)
return R();
if constexpr (IsVoidReturnType)
m_callable(std::forward<Params>(params)...);
else
return m_callable(std::forward<Params>(params)...);
}
private:
Function m_callable;
};
class FakeVimHandler : public QObject
{
Q_OBJECT
public:
explicit FakeVimHandler(QWidget *widget, QObject *parent = nullptr);
~FakeVimHandler() override;
QWidget *widget();
// call before widget is deleted
void disconnectFromEditor();
static void updateGlobalMarksFilenames(const QString &oldFileName, const QString &newFileName);
public:
void setCurrentFileName(const QString &fileName);
QString currentFileName() const;
void showMessage(MessageLevel level, const QString &msg);
// This executes an "ex" style command taking context
// information from the current widget.
void handleCommand(const QString &cmd);
void handleReplay(const QString &keys);
void handleInput(const QString &keys);
void enterCommandMode();
void installEventFilter();
// Convenience
void setupWidget();
void restoreWidget(int tabSize);
// Test only
int physicalIndentation(const QString &line) const;
int logicalIndentation(const QString &line) const;
QString tabExpand(int n) const;
void miniBufferTextEdited(const QString &text, int cursorPos, int anchorPos);
// Set text cursor position. Keeps anchor if in visual mode.
void setTextCursorPosition(int position);
QTextCursor textCursor() const;
void setTextCursor(const QTextCursor &cursor);
bool jumpToLocalMark(QChar mark, bool backTickMode);
bool inFakeVimMode();
bool eventFilter(QObject *ob, QEvent *ev) override;
Callback<void(const QString &msg, int cursorPos, int anchorPos, int messageLevel)>
commandBufferChanged;
Callback<void(const QString &msg)> statusDataChanged;
Callback<void(const QString &msg)> extraInformationChanged;
Callback<void(const QList<QTextEdit::ExtraSelection> &selection)> selectionChanged;
Callback<void(const QString &needle)> highlightMatches;
Callback<void(bool *moved, bool *forward, QTextCursor *cursor)> moveToMatchingParenthesis;
Callback<void(bool *result, QChar c)> checkForElectricCharacter;
Callback<void(int beginLine, int endLine, QChar typedChar)> indentRegion;
Callback<void(const QString &needle, bool forward)> simpleCompletionRequested;
Callback<void(const QString &key, int count)> windowCommandRequested;
Callback<void(bool reverse)> findRequested;
Callback<void(bool reverse)> findNextRequested;
Callback<void(bool *handled, const ExCommand &cmd)> handleExCommandRequested;
Callback<void()> requestDisableBlockSelection;
Callback<void(const QTextCursor &cursor)> requestSetBlockSelection;
Callback<void(QTextCursor *cursor)> requestBlockSelection;
Callback<void(bool *on)> requestHasBlockSelection;
Callback<void(int depth)> foldToggle;
Callback<void(bool fold)> foldAll;
Callback<void(int depth, bool dofold)> fold;
Callback<void(int count, bool current)> foldGoTo;
Callback<void(QChar mark, bool backTickMode, const QString &fileName)> requestJumpToLocalMark;
Callback<void(QChar mark, bool backTickMode, const QString &fileName)> requestJumpToGlobalMark;
Callback<void()> completionRequested;
Callback<void()> tabPreviousRequested;
Callback<void()> tabNextRequested;
Callback<void(bool insertMode)> modeChanged;
Callback<bool()> tabPressedInInsertMode;
Callback<void(const QString &, const QString &, QString *)> processOutput;
public:
class Private;
private:
Private *d;
};
} // namespace Internal
} // namespace FakeVim
Q_DECLARE_METATYPE(FakeVim::Internal::ExCommand)
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